Electrospindle and spindle for high speeds



Fe. 2%, 1939. Y c; p s o 2,147,714- w ELECT HOSPINDLE AND SPINDLE FOR HIGH SPEEDS Filed Aug. 11, 195'? v 2Sheets-Sheet 1 Feb. 21; 1939. c. T. PASTOR 9 1 ELECTROSPINDLE AND SPINDLE FOR HIGH SPEEDS Filed Aug. 11, 1937 2 Shasta-Sheet 2 J22 van for Car! 772e0aor- Paszar HEM/v2 e 1 Patented Feb. 21, 1939 UNITED STATES ELEO'IROSPINDLE AND SPINDLE FOR HIGH SPEEDS Carl Theodor Pastor, Huels over Krcfeld, Germany Application August 11, 1937, Serial No. 158,469

' In Germany August 13, 1936 8 Claims. '(oi. sis-4 .2)

caused by forcibly With the existing spindles for spinning and doubling, it is difficult to balance the rotating can, bobbin or package of yarn, so as to ensure satisfactory running of the spinning cans or.

bobbins in the case of rapidly rotating spindles making more than 10,000 revolutions per minute. The bobbins employed are soon worn out by being frequently placed on the spindle of the winding machine and then they no longer fit correctly on the tapered doubling spindle.

The exchange of the bobbins involves dimculties, since the bobbins make a tight fit and are therefore often diflicult to loosen from the spindle. A further disadvantage ofalready known constructions is' that rotating clamping devices are necessary for clamping the bobbin or spinning can firmly on the spindle. The clamping devices are subject to wear and when the spindles are rotating rapidly, the clamping devices may fly off, due to the centrifugal force, and cause damage to the adjacent rotating bobbins or form a source of danger to the attendants.

It has now been found that it is possible to allow the yarn support or spinning can to rest with itsv lower end on to the upper conical. end of the hollow shaft and to be supported with its upper end against the conically enlarged head portion of a pin slidably disposed within the yarn support and hollow shaft, the upper and lower head parts of the yarn support or spinning can being provided with a correspondingly constructed conical coupling seat. By this means, without any clamping device and solely by its own weight, the pin presses the bobbin for example on to the conicalend of the hollow shaft. and centres and couples the rotating body in a simple manner. Sincethe bobbin has a conical seat at both ends, it is immaterial if the bore of the bobbin becomes worn in course of time through the manipulations of winding. The conical seat of the bobbin is alwayscentered exactly by the conical end of the hollow shaft and the conical head of the pin.

A further particular advantage consists in the easy exchangeability of the bobbin or spinning can, since the latter have a perfectly loose seat on the hollow shaft and are not clamped in any way either to the actual hollow shaft or to the pin. This easy exchangeability is alone of great importance for the attendance of doubling spindles, since the bobbins can be exchanged in a shorter time than heretofore. The present invention' obviates damaging of the yarn material through displacement of the yarn layers or c ases pressingthe bobbins on the spindles.

In order to prevent wearing out of the conical I seat of the bobbin or spinning can during-starting, it is possible according to the invention,

.to provide between the lower end of the yarn support or'spinning can and the upper end of the hollow shaft, 9. separate hollow intermediate piece, whereof the upper end and also if desired the lower end are of conical construction. The upper end of the hollow shaft is adapted to correspond to the lower end of the intermediate piece.

It is also advantageous to construct the lower end ofthe spinning can or the intermediate piece so as to provide a flange-like outwardly projecting reinforcement which overlaps and covers the upper end of the hollow shaft.

The invention will be explained more fully with reference to the accompanying drawings:-- Figure 1 shows partly in section an electrospindle and bobbin mounting spindle for use of high speeds,

Figure 2 is a section through the bobbin, Figure 3 is a planof the bobbin, and Figure 4 shows partly in section the application of the invention to a spinning can.

In the drawings, the shaft of the 'electrospindle I is constructed as a hollow spindle and its end which projects from the motor housing is of conical construction to form a seat for the bobbin 2, the end flanges of which are provided with central bores which are likewise countersunk in conical form.- The pin 3 extends throughmaterials or the like and the ,metal tube 5 is caulked with the bobbin heads or flanges through the holes 6 provided. The conical countersunk portions of the central bore 8 form the seats for the conical end of the hollow shaft I and the conical head of the pin 3.

The various possible constructions of the bobbin are not shown in the drawings. Steady of the rotating mass of thread is assisted by making the pin so long that it projects from the lower part of the motor body of the electrospindle.

Figure 4 shows diagrammatically the application of the invention to the drive of a spinning can 9. In this construction, the hollow shaft III is formed in two parts Ill and i2 and the pin II is narrowed so that it can always swing out freely within the hollow shaft. The subdivision of the hollow shaft and the narrowed pin are shown for the sake of explanation. The pin is provided at its upper end with a conical shaped head which engages a correspondingly shaped seat formed in the spinning can boss.

According to the invention, the lower conical seat of the yarn support or spinning can rests on the part II, whereof the upper end is of conical form to provide a seat for the spinning can boss. If desired, the lower end of the part I! may also be of conical construction to provide a coupling between the part II and the shaft i0. Since by means of such an intermediate piece l2 metal is coupled to metal, wearing out of the bobbin or spinning can for example or of the conical seat thereof during starting is avoided to a very considerable extent.

To prevent precipitating hollow shaft or the motor, covered by suitable protective devices, even in the case of the spinning can drive. As further protective device, it is also possible to provide on the lower end of the spinning can or on the part 12 as shown at IS in Figure 4'for example, a flange-like projection which overlaps and covers the upper end face of the hollow shaft.

Although only preferred forms of the invention have been illustrated and those forms described in detail, it will be apparent to those slnlled in the art that various modifications may he made therein without departing from the spirit of the invention or the scope of the appended claims.

I claim:

1. In a spinning device, a vertical driven shaft being provided with a central bore and having its upper end of conical shape, a rotary spinning element carrying axially thereof a pair of aligned and oppositely disposed conical seats, the lower of said seats bearing on the upper endof said shaft, and a pin slidably disposed within the bore of the shaft and projecting upwardly through axial bores in said seats, said pin having at its upper end a head tapered on a conical surface towards said pin to engage the upper conical seat of said spinning element.

2. In a spinning device, a vertical, hollow drivliquid entering the the pin cone may be en shaft formed in two superimposed drivingly connected parts .and having its upper end of conical shape, a rotary spinning element carrying axially thereof a pair of aligned and oppositely disposed conical seats, the lower of said seats bearing on the upper end of said shaft, and

' a pin slidably disposed within the bore of the shaft and projecting upwardly through axial bores in said seats, said pin having at its upper end a head tapered on a conical surface towards said pin to engage the upper conical seat of said spinning element.

3. In a spinning device, a vertical driven shaft having a central bore and being formed in two superimposed parts, provided with interengaging conical surfaces at their adjacent ends and the upper end of the upper part being of conical shape, a rotary spinning element carrying axially thereof a pair of aligned and oppositely disposed conical seats. the-lower of said seats bearing on the upper conical end of the upper part of the driven shaft, and a pin slidably disposed within the bore of the shaft and projecting upwardly through axial bores of said seats, said pin having at its upper end a head tapered on a coni- 5 posed within the bore of the hollow shaft and 1 projecting upwardly through axial bores in said seats, said pin having at its upper end a head, tapered on a conical surface towards said pin to engage-the upper conical seat of said spinning element.

5. In a spinning device, a vertical driven shaft being provided with a central bore and having its upper end of conical shape. a bobbin having two end flanges, each being provided with a central bore opening into a conical seat, and a pin slidably disposed within the bore of the driveik shaft and passing through the bores in said end flanges, said .pin having at its upper end a head tapered on a conical surface towards said pin, the conical end of the driven shaft engaging the conical seat in one of said end flanges and said conical surface of the pin head engaging the seat in the other end flange.

d. In a spinning device, an electromotor, in-

cluding a vertically disposed hollow shaft ha"- ing its projecting upper end of conical shape, a bobbin having two end flanges each provided with a central bore opening into conical seat, and a pin loosely and slidably disposed the bore of said motor shaft and passing through the bores in said end flanges, said pin having a head tapered on a conical surface towards said pin, the conical seat in one of said end flanges bearing on the conical end of the motor shaft and the conical seat in the other end flange T119." ing engaged by said conical suriace oi the pin head.

'7. In a spinning device, a vertical, hollow driven shaft formed in two superimposed drivingly connected parts and having its upper end of conical shape, a rotary spinning element carrying axially thereof a pair of aligned and oppositely disposed conical seats, the lower of said seats bearing on the upper end of said shaft, and a pin slidably disposed within the bore of the shaft and projecting upwardly through axial boresin said seats, said pin having at its upper end a head tapered on a conical surface towards said plate engage the upper conical seat of said spinning element, and the portion of the pin within the shaft being tapered.

ii. In a spinning device, a hoiiow shaft hear-- ing one end thereof tapered, a spinning element comprising a centrally disposed seat shaped to accommodate and engaging the tapered end oi said a second seat carried centrally on said. spinning element in alignment with opposite said first seat, and a pin passing through and heing slidable in the bore of the shaft and axial bores of said seats said pin comprising a head shaped to be accommodated in and in engagement with said second seat.

CARL THEODOR PASTOR. 

